• Steel Flanges

    A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system, provides easy access for cleaning, inspection or modification. read more

  • Pipe Fittings

    The ends of all buttweld fittings are bevelled.The shape of the bevel depending upon the actual wall thickness.This bevelled ends are needed to be able to make a "Butt weld". read more

  • Steel Pipes

    Pipe is a hollow tube with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. read more

Finally, hebei haihao pipe fitting factory proceeded the heating treatment for 120 pcs hot induction bends .  They are from the new order of 920 pcs 5D hot induction pipe bends.


These bends specification is 12″, 5D, 180 Degree, the bend without any tangent length on the two ends, material is API 5L GR.B.  Coating finish is black painted , they are all normal requirements in our regular production .after the hot induction bending process, we do this step of heat treatment.


For the steel pipe fittings , suitable heat treatment is necessary to get a good quality performance. As per the clients request , we arranged heat treatment for all the bends at a temperature of 600 ℃, it can make sure the high quality request of the project and end user.


It is a little raining today here in Hebei, but it did not delay the heat treatment working in our factory. our 12.5meter * 4.5meter heating treatment furnace workshop operated very good in such weither , finally we finish the work as per the plan ,it will not effect the delivery time of this bends order .

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haihao has been a professional supplier of pipes,fittings and flanges, serving the world industry piping since 1982.
oil and gas industry

as a leading manufacturer,stockist and supplier, our knowledgeable and experienced technical team can understand well what you need . help you find the best solution for your regular and specific requirement.
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Tom , Haihao Group

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